naynay1997
naynay1997
23.04.2021 • 
Mathematics

Part A Write all steps required
Solve the equation x^2 + 12x - 28 = 0) by completing the square, and give the solution or solutions.
Part B
Explain what value or values of c make the equation x^2+12x+c=0 have one and only one solution. Justify your answer.
Enter your answer and your justification in the space provided.

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